Consolidated Statements Of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income (loss) from continuing operations	$ 442,000	$ (603,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation, depletion, and amortization	795,000	862,000
Amortization of loan fees-interest expenses	4,000	20,000
Accretion of discount on asset retirement obligation	141,000	141,000
(Gain) loss on asset sales	(33,000)	(2,000)
Compensation and services paid in stock / stock options	23,000	14,000
Changes in assets and liabilities:
Accounts receivable	96,000	(318,000)
Inventory, prepaid expense, and other assets	(28,000)	203,000
Accounts payable	(58,000)	(78,000)
Accrued liabilities	(64,000)	(73,000)
Settlement on asset retirement obligations	(25,000)	(53,000)
Net cash provided by operating activities - continuing operations	1,293,000	113,000
Net cash provided by operating activities - discontinued operations	44,000	41,000
Net cash provided by operating activities	1,337,000	154,000
Investing activities
Additions to oil and gas properties	(1,011,000)	(169,000)
Proceeds from sale of oil and gas properties	7,000	7,000
Additions to other property and equipment	(27,000)	(17,000)
Proceeds from sale of other property and equipment	8,000
Net cash used in investing activities - continuing operations	(1,023,000)	(179,000)
Net cash provided by investing activities - discontinued operations	2,658,000
Net cash provided by (used in) investing activities	1,635,000	(179,000)
Financing activities
Proceeds from stock issuance in rights offering		2,699,000
Cost of stock issuance in rights offering		(102,000)
Proceeds from borrowings	100,000	400,000
Repayment of borrowings	(142,000)	(2,854,000)
Loan fees		(9,000)
Net cash provided by (used in) financing activities - continuing operations	(42,000)	134,000
Net cash provided by (used in) financing activities	(42,000)	134,000
Net change in cash and cash equivalents	2,930,000	109,000
Cash and cash equivalents, beginning of period	185,000	76,000
Cash and cash equivalents, end of period	3,115,000	185,000
Supplemental cash flow information:
Cash interest payments		33,000
Supplemental non-cash investing and financing activities:
Financed company vehicles	136,000	81,000
Cost of stock issuance in rights offering		(140,000)
Asset retirement obligations incurred	7,000	1,000
Revisions to asset retirement obligations	(198,000)	$ 138,000
Capital expenditures included in accounts payable and accrued liabilities	$ 9,000